Jean v



UNITED STATES PATENT OFFICE.

JEAN v. SKOGLUND, or NEW YORK, N. Y. I

FIRE AND WATER PROOF COMPOSITION AND PROCESS OF MAKING SAME.

No Drawing.

To all whom it may concern:

Be it known that I, JEAN V. SKooLUND, a citizen of the United States, and a resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented a certain new and useful Fire and \Nater Proof Composition and Process of Making Same, of which the following is a description in such full, clear, and exact terms as will enable any person skilled in the art to which it pertains to make and use the same.

My invention relates to the manufacture of a fire and waterproof composition suitable, for example, for application to such Woods as balsa wood which are soft and spongy and unfit to be covered with ordinary paint, which composition shall be both fire and waterproof and at the same time with sufficient body and stiffness or strength to resist the crushing and chipping strains to which the coated wood will be subjected when in use, for example, as life preservers, life rafts and the like. For coating such woods to prevent them from absorbing moisture, I have found that the covering or coat cannot be ordinary paint for the wood will absorb too much of the paint and become too heavy and dense for use as a buoyant body or for heat-insulation and the paint is not sufliciently hard to resist the crushing strains on the soft, spongy wood. The covering, therefore, must be of such material as will offer a firm resistance and protect the soft wood not only from absorption, but from crushing or denting. Hydrocarbons such as pitch, tar, asphalt and other similar materials are suitable for this purpose but are so inflammable that they cannot ordinarily be used. My invention deprives these materials of their inflammable character.

The invention, of course, has other uses than those above outlined and is in no sense limited to the same, but may be employed in any situation Where a fire and Waterproof coating is required for either Wood or metal. In carrying out my invention I treat tar, pitch or similar materials with bromin, which combines with themand' forms a brominated product. This compound is noninflammable and when Sub ected to heat melts and forms a protective coating for the material on which it is applied.

Instead of using tar, pitch, etc., I'may combine the bromin with a refined and dis- Specification of Letters Patent.

Patented Aug. 15, 1916.

tillated product of the same. Such products are well known, but creosote-oil, anthracene and naphthalene maybe mentioned. Sometimes it will be more convenient to apply the bromin first to a fluid product such as tar, dead oil, etc., and then combine the mixture with a solid material such as pitch, asphaltum, etc., though the bromin may be mixed directly with the tar or pitch if desired.

One method of carrying out my invention is to take about two (2) parts of bromin and mix the same with four (4) parts of gas tar or dead oil. This sets up a very active reaction accompanied by heat and ebullition and from which some acid vapor is given off. The reaction finally subsides and the resultant compound is then mixed and fused with about twenty parts of pitch.

The compound should be heated to about the fusing point and applied when heated to the surface to be covered. Accordingly in this practice the compound is subjected to repeated heatings and coolings which act on the same to raise its fusing point and in order to avoid high temperatures I may treat the compound from time to time with further additions of bromin and dead oil. Thatis to say, after a certain quantity-of the composition has been formed in either of the ways above mentioned and heated up for use from time to time, that which remains, upon requiring increased heat to fuse it, may have a mixture of bromin and dead oil added to soften it or reduce its fusing point and in this manner the fusing point kept down within easy working limits.

The bromin does not destroy the waterproofing and protective qualities of the tar, pitch or other similar materials, but it does modify them so that they may be ignited and will burn with such difiiculty only that they may be regarded as practically fireproof. The composition makes a tough, elastic protective coat for all materials which usually require to be coated and it is, as explained, both waterproof or non-absorbent and fireproof. I may also mix a brominated substance as above described with any kind of oil and pigments to form a paint which'may be used for any purpose when it is desirable to make it fireproof.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A fire-and waterproof composition for use as a covering or coating material .con-

taining a, heavy hydrocarbon and dead oil In testimony whereof I have hereunto combined with bromin substantially as and signed my name in the presence of two Wit- 10 for the purpose specified. nesses.

2. The process of making a fire-and Water- 5 proof composition which consists in combin- JEAN SKOGLUND' ing dead oil and bromin and then combining Witnesses: the same with a heavy hydrocarbon substan- SYDNEY H. GIELLERUP, tially as and for the purpose specified. ARTHUR VEHLoW. 

